WO2019039623A1 - Système de réduction de matière particulaire dans un gaz d'échappement - Google Patents

Système de réduction de matière particulaire dans un gaz d'échappement Download PDF

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Publication number
WO2019039623A1
WO2019039623A1 PCT/KR2017/009155 KR2017009155W WO2019039623A1 WO 2019039623 A1 WO2019039623 A1 WO 2019039623A1 KR 2017009155 W KR2017009155 W KR 2017009155W WO 2019039623 A1 WO2019039623 A1 WO 2019039623A1
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WO
WIPO (PCT)
Prior art keywords
conductor
particulate matter
insulator
disposed
gas stream
Prior art date
Application number
PCT/KR2017/009155
Other languages
English (en)
Korean (ko)
Inventor
손창수
Original Assignee
유한회사 더프라임솔루션
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 유한회사 더프라임솔루션 filed Critical 유한회사 더프라임솔루션
Priority to US16/640,310 priority Critical patent/US11078818B2/en
Priority to EP17922591.7A priority patent/EP3677759B1/fr
Priority to CN201780094183.XA priority patent/CN111051658A/zh
Priority to PCT/KR2017/009155 priority patent/WO2019039623A1/fr
Publication of WO2019039623A1 publication Critical patent/WO2019039623A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/01—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust by means of electric or electrostatic separators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/027—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using electric or magnetic heating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/28—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a plasma reactor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated

Definitions

  • the present invention relates to a particulate matter reduction system for exhaust gas, and more particularly, to a particulate matter reduction system for removing particulate matter (PM) contained in an exhaust gas generated in an automobile, a semiconductor process, or the like by using a non-thermal plasma (NTP) Thereby reducing the amount of particulate matter discharged into the atmosphere.
  • PM particulate matter
  • NTP non-thermal plasma
  • Carbon monoxide (CO), nitrogen oxides (NOx), sulfur dioxide (SO2), non-methane hydrocarbons (NMHC), and particulate matter (PM) are generated as a result of incomplete combustion of gasoline or diesel engines.
  • NTP low temperature plasma
  • NTP low temperature plasma
  • NTP cold plasma
  • NTP low temperature plasma
  • NTP low temperature plasma
  • PM particulate matter
  • NTP low temperature plasma
  • particulate matter may reduce or destroy the efficiency of a low temperature plasma (NTP) system by coating elements related to the production of low temperature plasma (NTP).
  • NTP low temperature plasma
  • NTP low temperature plasma
  • Disclosure is directed to providing a particulate matter abatement system for a low temperature plasma (NTP) based exhaust gas that reduces the amount of particulate matter (PM) in a gas stream such as exhaust gas.
  • NTP low temperature plasma
  • PM particulate matter
  • the present invention provides a system for reducing the particulate matter of a low temperature plasma (NTP) based exhaust gas in which the accumulation and arcing of particulate matter, which is a cause of reduction in generation of low temperature plasma (NTP) .
  • NTP low temperature plasma
  • a particulate matter reduction system for an exhaust gas includes: a first conductor provided with a gas stream into which a gas stream flows, the ground power source being connected; A second conductor disposed within said first conductor, said second conductor having an emitter in contact with said gas stream and producing a low temperature plasma (NTP); And an insulator electrically isolating the second conductor from the first conductor, wherein DC voltage of a predetermined magnitude is continuously applied to the second conductor.
  • NTP low temperature plasma
  • the secondary conductor comprises: a vertical rod arranged in the radial direction of the primary conductor; A horizontal rod extending at an end of the vertical rod in a direction parallel to the flow direction of the gas stream; And an emitter provided at a distal end of the horizontal rod and having a plurality of protrusions having apexes on an outer surface thereof.
  • the insulator is provided as an electrically insulating material and is arranged to surround the vertical rod, and one end is disposed inside the first conductor And the other end of the first conductor is disposed outside the first conductor to electrically isolate the second conductor from the first conductor, and the first conductor and the second conductor are connected to each other, And an engaging groove into which the horizontal rod is inserted.
  • the particulate matter reduction system of the present invention is provided with an annular cover provided to cover one end of the insulator, which is disposed inside the first conductor, And an arc preventing member made of a material having non-discharge corrosive non-eroding property.
  • the emitter is located in the inner center of the first conductor, and the horizontal rod is arranged in a direction from the vertical rod toward the upstream of the gas stream And is extended and disposed.
  • the insulator has a shape in which the horizontal cross-sectional area decreases in a direction from the wall surface of the first conductor to the horizontal rod inside the first conductor .
  • the secondary conductor is characterized in that a cathode power source is applied.
  • the direct current voltage applied to the second conductor is characterized by being -30 kV to -80 kV.
  • the second conductors are arranged in plural along the longitudinal direction of the first conductor, each of them is electrically insulated from the first conductor, And an emitter for generating a plasma (NTP).
  • NTP a plasma
  • the present invention since DC power of a predetermined magnitude is continuously applied to the second conductor, incomplete removal (or decomposition) of particulate matter PM due to overshooting of power can be prevented, The particulate matter (PM) or decomposition products thereof are prevented from accumulating.
  • the present invention it is possible to prevent the generation of an arc due to the particulate matter (PM) accumulated on the surface of the insulator or its decomposition product by the arc preventing member.
  • the assembly convenience of the second conductor and the insulator can be improved by the engagement groove and the arc preventing member formed at the end of the insulator, and the second conductor can be parallel to the gas stream at the center of the first conductor It can be arranged in one direction.
  • FIG. 1 shows an embodiment of a particulate matter reduction system for an exhaust gas according to the present invention.
  • FIG. 2 and FIG. 3 illustrate an example of a second conductor in FIG. 1;
  • FIG. 4 is a view showing an installation example of a particulate matter reduction system for an exhaust gas according to the present invention.
  • FIG. 1 is a view showing an embodiment of a particulate matter reduction system of an exhaust gas according to the present invention
  • FIGS. 2 and 3 are views showing an example of a second conductor in FIG.
  • a particulate matter reduction system 100 for an exhaust gas includes first and second conductors 110 and 120, an insulator 130, and a voltage application unit 140.
  • the first conductor 110 is provided with a tube through which the gas stream flows.
  • the first conductor 110 is connected to a ground power source and is made of an electrically conductive material.
  • the first conductor 110 may be used as it is, such as an automobile or a semiconductor process, as it is, or may be provided with a separate piping so as to be connected to the exhaust gas piping.
  • the second conductor 120 is a structure disposed within the first conductor 110 and having an emitter 150 that is in contact with the gas stream and produces a low temperature plasma (NTP).
  • NTP low temperature plasma
  • NTP low temperature plasma
  • the voltage applied to the second conductor 120 needs to be continuously applied with a DC voltage of a predetermined magnitude.
  • a DC voltage of -30 kV to -80 kV is applied constantly.
  • An insulator 130 for electrically separating the second conductor 120 from the first conductor 110 may be used for generating the low temperature plasma (NTP) due to the voltage difference between the first and second conductors 110 and 120 Respectively.
  • NTP low temperature plasma
  • the insulator 130 is made of an electrically insulating material, and examples thereof include ceramics. This can prevent the accumulation of particulate matter (PM) or its decomposition products on the surface thereof by using the surface roughness.
  • PM particulate matter
  • the voltage applying unit 140 controls the DC voltage of the second conductor 120 to be applied continuously.
  • the voltage application unit 140 includes a system control unit 141 for controlling the connection of the power supply between the particulate matter reduction system 100 of the exhaust gas according to the present embodiment and the apparatus in which the particulate matter reduction system 100 is installed, To a voltage required by the particulate matter reduction system 100 of the exhaust gas according to the present embodiment.
  • the system control section 141 has a control function that has a function of turning on / off the system in accordance with the running state of the vehicle and simultaneously monitoring the state of the high-pressure device section. And to display an abnormal state by a flashing LED when it occurs. In this case, the power supplied to the transforming unit 143 is cut off from the RL so that no other dangerous situation occurs.
  • the system operation status is displayed on the user display in a normal operation ON LED, and in a blinking state when an error occurs.
  • the transformer 143 is a device for converting to high pressure. It uses a multi-stage rectification system to minimize the occurrence of arcing which reduces ripple and stabilizes the system efficiency due to a stable high pressure, Keep it in a constant state.
  • the second conductor 120 includes the vertical rod 121, the horizontal rod 123, and the emitter 150.
  • the vertical rod 121 and the horizontal rod 123 are provided as a conductor integrally connected to each other, and the central portion thereof is bent.
  • the vertical rod 121 is arranged in the radial direction of the first conductor 110.
  • the vertical rod 121 is disposed radially through the first conductor 110. One end and the other end of the first conductor 110 are disposed inside and outside the first conductor 110, A rod 123 is disposed.
  • the exposed portion of the first conductor 110 is electrically connected to the transformer 143.
  • the horizontal rod 123 is arranged to extend in the direction parallel to the flow direction of the gas stream at the end of the vertical rod 121.
  • the horizontal rod 123 is disposed at the center of the first conductor 110. It is desirable to be located exactly in the center for effective removal of particulate matter.
  • the emitter 150 is provided at the end of the horizontal rod 123 and has a plurality of protrusions 150a having apexes on its outer surface.
  • the emitter 150 is disposed in the same orientation as the horizontal rod 123 and is preferably located exactly in the center within the first conductor 110 for effective removal of particulate matter.
  • the insulator 130 is provided as an electrically insulating material and surrounds the vertical rod 121. So that the vertical rods 121 are not electrically connected to each other in a state where they pass through the first conductor 110.
  • one end of the insulator 130 is disposed inside the first conductor 110, and the other end is disposed outside the first conductor 110 to electrically isolate the second conductor 120 from the first conductor 110.
  • a horizontal rod 123 is inserted into one end of the insulator 130 disposed inside the first conductor 110 so that the first conductor 110 and the second conductor 120 are coupled with each other. It is preferable to have a loosely fitting engagement groove 131.
  • the second conductor 120 Since the bending portion of the second conductor 120, that is, the portion where the horizontal rod 123 and the vertical rod 121 meet, is engaged with the coupling groove 131, the second conductor 120 to the insulator 130 ) Is not changed. Accordingly, the second conductor 120 can be disposed in the central portion of the first conductor 110 in a direction parallel to the gas stream without any operation.
  • the coupling groove 131 can be separately formed between the insulator 130 and the second conductor 120 There is no need to place the adhesive. Therefore, the assembling convenience is improved.
  • the arc preventing member 160 is made of a material having non-discharge corrosive non-eroding and is provided so as to cover one end of the insulator 130 disposed inside the first conductor 110 do.
  • the arc preventing member 160 is attached to the horizontal rod 123.
  • connection between the arc preventive member 160 and the insulator 130 is formed by connecting a screw member 170 coupled with the end of the second conductor 120 to the outside of the first conductor 110 Electrode).
  • the emitter 150 is located at the center of the inner portion of the first conductor 110, and the horizontal rod 123 is disposed extending from the vertical rod 121 in the direction toward the upstream of the gas stream .
  • the emitter 150 is disposed to face the gas stream.
  • the insulator 130 is provided in a shape such that the horizontal cross-sectional area of the insulator 130 decreases in a direction from the wall surface of the first conductor 110 to the horizontal rod 123 in the first conductor 110.
  • NTP low temperature plasma
  • FIG. 4 is a view showing an example of installation of a particulate matter reduction system of the exhaust gas according to the present invention.
  • the particulate matter reduction system 100 of the exhaust gas according to the present embodiment may be arranged in series in series along the exhaust gas discharge path.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

L'invention concerne un système de réduction de matière particulaire dans un gaz d'échappement. Ce système comprend: un premier conducteur se présentant sous la forme d'un corps tubulaire à travers lequel s'écoule un flux de gaz, et auquel une alimentation électrique au sol est connectée; un second conducteur disposé à l'intérieur du premier conducteur et ayant un émetteur qui entre en contact avec le flux de gaz et qui génère un plasma non thermique; et un isolant pour séparer électriquement le second conducteur du premier conducteur, un niveau prédéterminé de tension continue étant appliqué en continu au second conducteur.
PCT/KR2017/009155 2017-08-22 2017-08-22 Système de réduction de matière particulaire dans un gaz d'échappement WO2019039623A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US16/640,310 US11078818B2 (en) 2017-08-22 2017-08-22 System for reducing particulate matter in exhaust gas
EP17922591.7A EP3677759B1 (fr) 2017-08-22 2017-08-22 Système de réduction de matière particulaire dans un gaz d'échappement
CN201780094183.XA CN111051658A (zh) 2017-08-22 2017-08-22 用于减少排气中的颗粒物的系统
PCT/KR2017/009155 WO2019039623A1 (fr) 2017-08-22 2017-08-22 Système de réduction de matière particulaire dans un gaz d'échappement

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/KR2017/009155 WO2019039623A1 (fr) 2017-08-22 2017-08-22 Système de réduction de matière particulaire dans un gaz d'échappement

Publications (1)

Publication Number Publication Date
WO2019039623A1 true WO2019039623A1 (fr) 2019-02-28

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Application Number Title Priority Date Filing Date
PCT/KR2017/009155 WO2019039623A1 (fr) 2017-08-22 2017-08-22 Système de réduction de matière particulaire dans un gaz d'échappement

Country Status (4)

Country Link
US (1) US11078818B2 (fr)
EP (1) EP3677759B1 (fr)
CN (1) CN111051658A (fr)
WO (1) WO2019039623A1 (fr)

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5263317A (en) 1990-05-25 1993-11-23 Kabushiki Kaisha Nagao Kogyo Exhaust gas purifying apparatus for automobile diesel engine
KR20010001008A (ko) * 1999-06-01 2001-01-05 윤종용 화학기상증착설비의 아크 방지용 하부 전극
US6482368B2 (en) 2000-12-19 2002-11-19 Delphi Technologies, Inc. Non-thermal plasma reactor for lower power consumption
US20040185396A1 (en) 2003-03-21 2004-09-23 The Regents Of The University Of California Combustion enhancement with silent discharge plasma
US20050019714A1 (en) 2003-07-24 2005-01-27 David Platts Plasma catalytic fuel injector for enhanced combustion
US6852200B2 (en) 2002-02-14 2005-02-08 Delphi Technologies, Inc. Non-thermal plasma reactor gas treatment system
JP2005240634A (ja) * 2004-02-25 2005-09-08 Toyota Motor Corp 排ガス浄化プラズマリアクター
US20070045101A1 (en) 2005-07-06 2007-03-01 Rochester Institute Of Technology Self-regenerating particulate trap systems for emissions and methods thereof
US20080314734A1 (en) 2007-06-21 2008-12-25 The Regents Of The University Of California Carbonaceous solid fuel gasifier utilizing dielectric barrier non-thermal plasma
KR20110009659A (ko) * 2008-03-25 2011-01-28 인바이런멘탈 에너지 테크놀로지스 인코포레이티드 저온 플라즈마 입자상 물질 감소 시스템 및 그 이용 방법
JP2011064161A (ja) * 2009-09-18 2011-03-31 Acr Co Ltd プラズマ放電を用いた排気ガス浄化装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19808098C1 (de) * 1998-02-26 1999-08-05 Daimler Benz Ag Verfahren und Vorrichtung zur Abgasreinigung
JP2009112916A (ja) * 2007-11-05 2009-05-28 Mitsubishi Heavy Ind Ltd 排ガス浄化装置
DE102010045507A1 (de) * 2010-09-15 2012-03-15 Emitec Gesellschaft Für Emissionstechnologie Mbh Anordnung für eine Stromversorgung einer Komponente in einem Abgasystem
EP2857104A4 (fr) * 2012-05-29 2015-05-27 Toyota Motor Co Ltd Dispositif de traitement de matière particulaire
DE102013100798A1 (de) * 2013-01-28 2014-07-31 Emitec Gesellschaft Für Emissionstechnologie Mbh Vorrichtung und Verfahren zur Behandlung eines Partikel aufweisenden Abgases
JP6290824B2 (ja) * 2015-05-22 2018-03-07 トヨタ自動車株式会社 排気浄化装置

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5263317A (en) 1990-05-25 1993-11-23 Kabushiki Kaisha Nagao Kogyo Exhaust gas purifying apparatus for automobile diesel engine
KR20010001008A (ko) * 1999-06-01 2001-01-05 윤종용 화학기상증착설비의 아크 방지용 하부 전극
US6482368B2 (en) 2000-12-19 2002-11-19 Delphi Technologies, Inc. Non-thermal plasma reactor for lower power consumption
US6852200B2 (en) 2002-02-14 2005-02-08 Delphi Technologies, Inc. Non-thermal plasma reactor gas treatment system
US20040185396A1 (en) 2003-03-21 2004-09-23 The Regents Of The University Of California Combustion enhancement with silent discharge plasma
US20050019714A1 (en) 2003-07-24 2005-01-27 David Platts Plasma catalytic fuel injector for enhanced combustion
JP2005240634A (ja) * 2004-02-25 2005-09-08 Toyota Motor Corp 排ガス浄化プラズマリアクター
US20070045101A1 (en) 2005-07-06 2007-03-01 Rochester Institute Of Technology Self-regenerating particulate trap systems for emissions and methods thereof
US20080314734A1 (en) 2007-06-21 2008-12-25 The Regents Of The University Of California Carbonaceous solid fuel gasifier utilizing dielectric barrier non-thermal plasma
KR20110009659A (ko) * 2008-03-25 2011-01-28 인바이런멘탈 에너지 테크놀로지스 인코포레이티드 저온 플라즈마 입자상 물질 감소 시스템 및 그 이용 방법
JP2011064161A (ja) * 2009-09-18 2011-03-31 Acr Co Ltd プラズマ放電を用いた排気ガス浄化装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3677759A4

Also Published As

Publication number Publication date
US11078818B2 (en) 2021-08-03
EP3677759A4 (fr) 2021-03-10
CN111051658A (zh) 2020-04-21
US20200256229A1 (en) 2020-08-13
EP3677759A1 (fr) 2020-07-08
EP3677759B1 (fr) 2023-11-22

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